West Hartford Weather in September

What's the weather like in West Hartford (Connecticut) in September 2025?

The climate in West Hartford during September can be summarized as mild and a little damp.

September is in the fall / autumn in West Hartford and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 24°C (74°F), whilst at night 11°C (52°F) is normal.

West Hartford weather averages (imperial / metric)
Daytime temperature 23.5°C 74.2°F
Nightly temperature 11.2°C 52.1°F
Average temperature 17.3°C 63.1°F
Daily sunshine 8 hrs
Avg rainfall 95 mm 3.7 ins
Rainy days 9 days
Sea temperature 19.6°C 67.3°F
Humidity 74%
Windspeed 14kph 9 mph

On average September is the 5th wettest month of the year in West Hartford with around 95mm 3.7 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.

On the flip side this corresponds to an average of 8 hours of sunshine per day.

September temperatures in West Hartford

West Hartford average temperature in September

September rainfall

West Hartford average rain in September

September hourly sunshine

West Hartford average rain in September

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in West Hartford in September 2025.

Other monthly averages

Best places to visit in September

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

West Hartford weather stats

West Hartford weather statistics
Hottest month: July 28.3°C 82.9°F
Driest month: February 79mm 3.1ins
Sunniest month: July 9.9hrs
Coldest month: January 0.7°C 33.3°F
Wettest month: May 101mm 4ins
Map showing location of West Hartford (41.76204, -72.74204) West Hartford map pin © Google

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